TMJ Symptoms. The most common symptom of TMJ disorder is pain. TMJ symptoms include 1  : Facial pain in the jaw joint area, neck and shoulders, and/or close to the ear when chewing, speaking or opening the mouth wide. 2  Limited ability to open the mouth very wide. 3  Jaw that âlocksâ in the open or closed mouth position.
An overactive immune system. If you are born with certain genes, your immune system may react to substances in the environment that are normally harmless. These substances are called allergens. Having an allergic reaction is the most common example of an overactive immune system.hen your immune system doesn't work the way it should, it is called an immune system or immunodeficiency disorder. You may: Be born with a weak immune system. This is called primary immune deficiency.
immune response the reaction to and interaction with substances interpreted by the body as not-self, the result being humoral and cellular immunity.Called also immune reaction. The immune response depends on a functioning thymus and the conversion of stem cells to B and T lymphocytes.ypersensitivity is the result of an overreaction to substances entering the body. Examples of this kind of inappropriate immune response include hay fever, drug and food allergies, extrinsic asthma, serum sickness, and anaphylaxis.